1628115655 has 8 divisors (see below), whose sum is σ = 1954722384. Its totient is φ = 1301836800.

The previous prime is 1628115637. The next prime is 1628115667. The reversal of 1628115655 is 5565118261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1628115655 - 2¹⁹ = 1627591367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70906 + ... + 91015.

It is an arithmetic number, because the mean of its divisors is an integer number (244340298).

Almost surely, 2^1628115655 is an apocalyptic number.

1628115655 is a deficient number, since it is larger than the sum of its proper divisors (326606729).

1628115655 is a wasteful number, since it uses less digits than its factorization.

1628115655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163937.

The product of its digits is 72000, while the sum is 40.

The square root of 1628115655 is about 40349.9151795887. The cubic root of 1628115655 is about 1176.4182434071.

The spelling of 1628115655 in words is "one billion, six hundred twenty-eight million, one hundred fifteen thousand, six hundred fifty-five".